Goa Board (GBSHSE) - Class 7

Rational Numbers, Algebra & Geometry question bank (Mathematics (Class 7))

Practice 325 free Goa Board (GBSHSE) - Class 7 Mathematics (Class 7) - Rational Numbers, Algebra & Geometry questions with answers and step-by-step solutions.

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Q1.

Algebraic Identities: Which expansion is correct for 'Integers, Fractions and Decimals Comprehensive Operations'?

(A)
$(a+b)^2 = a^2 + 2ab + b^2$ or $(a-b)(a+b) = a^2 - b^2$ (Integers, Fractions and Decimals Comprehensive Operations)
(B)
$a^2 + b^2$ only
(C)
Arbitrary expression
(D)
None of these
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Q2.

Exponents & Powers: In 'Integers, Fractions and Decimals Comprehensive Operations', what is the value using laws of exponents $a^m \times a^n = a^{m+n}$?

(A)
Accurate exponential simplified form (Integers, Fractions and Decimals Comprehensive Operations)
(B)
$a^{{m \times n}}$
(C)
Zero
(D)
None of these
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